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Article ; Online: Qi Sui Zhu Shui Plaster Inhibits AQP1 and MAPK Signaling Reduces Liver Damage Induced by Cirrhotic Ascites

Rong Zhen Zhang / Yin Liu / Min Li / Yong Lin Huang / Zhen Heng Song

Journal of Healthcare Engineering, Vol

2022 Volume 2022

Abstract: Objective. At present, there is no special treatment for cirrhotic ascites in modern medicine. Qi Sui Zhu Shui plaster (QSZSP) has been used in ascites. The purpose of this study was to investigate the mechanism of action of QSZSP in the treatment of ... ...

Abstract	Objective. At present, there is no special treatment for cirrhotic ascites in modern medicine. Qi Sui Zhu Shui plaster (QSZSP) has been used in ascites. The purpose of this study was to investigate the mechanism of action of QSZSP in the treatment of cirrhotic ascites and its relationship with aquaporin 1 (AQP1). Methods. Twenty-four rats were divided into four groups, six rats in each group. Carbon tetrachloride-olive oil is injected into modeling. The control and model groups are treated with blank gel plaster (2 cm × 2 cm), QSZSP low-dose group is treated with Qi Sui Zhu Shui plaster (1 cm × 1 cm), and QSZSP high-dose group is treated with Qi Sui Zhu Shui plaster (2 cm × 2 cm). The changes in body weight and abdominal circumference were measured, the histopathological changes in liver, kidney, and peritoneum were observed in HE staining, the biochemical indexes related to liver function were detected, and the changes in AQP1 expression and the activation of MAPK pathway in the liver, kidney, and peritoneal tissues were evaluated in IHC staining and Western blot. Results. After one week of injection of carbon tetrachloride-olive oil, the rats in the model group increased their body weight slowly, the abdominal circumference of the model rats continued to increase with time. After 16 weeks of construction of the cirrhotic ascites model, the liver, kidney, and peritoneum were significantly damaged, and the serum levels of TBiL, AST, ALT, Cr, BUN, K, Na, and Ca in the rats were significantly higher P<0.001 and ALB levels were significantly lower P<0.001 than those in the control group. After 4 weeks of treatment, the liver, kidney, and peritoneal injury were improved. TBiL, AST, ALT, Cr, BUN, K, Na, and Ca levels were significantly lower P<0.001 and ALB levels were significantly higher P<0.001 than those in the model group. The protein expression of AQP1, p-ERK, p-JNK, and p-p38 was found to be inhibited in the liver, kidney, and peritoneum. Conclusion. QSZSP inhibits the protein expression of AQP1 ...
Keywords	Medicine (General) ; R5-920 ; Medical technology ; R855-855.5
Subject code	630
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	Hindawi Limited
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Identification of Unstable Ellagitannin Metabolites in the Leaves of Quercus dentata by Chemical Derivatization

Zhang-Bin Liu / Yosuke Matsuo / Yoshinori Saito / Yong-Lin Huang / Dian-Peng Li / Takashi Tanaka

Molecules, Vol 28, Iss 1246, p

2023 Volume 1246

Abstract: The identification of unstable metabolites of ellagitannins having ortho-quinone structures or reactive carbonyl groups is important to clarify the biosynthesis and degradation of ellagitannins. Our previous studies on the degradation of vescalagin, a ... ...

Abstract	The identification of unstable metabolites of ellagitannins having ortho-quinone structures or reactive carbonyl groups is important to clarify the biosynthesis and degradation of ellagitannins. Our previous studies on the degradation of vescalagin, a major ellagitannin of oak young leaves, suggested that the initial step of the degradation is regioselective oxidation to generate a putative quinone intermediate. However, this intermediate has not been identified yet. In this study, young leaves of Quercus dentata were extracted with 80% acetonitrile containing 1,2-phenylenediamine to trap unstable ortho-quinone metabolites, and subsequent chromatographic separation afforded a phenazine derivative of the elusive quinone intermediate of vescalagin. In addition, phenylenediamine adducts of liquidambin and dehydroascorbic acid were obtained, which is significant because liquidambin is a possible biogenetic precursor of C-glycosidic ellagitannins and ascorbic acid participates in the production of another C-glycosidic ellagitannin in matured oak leaves.
Keywords	vescalagin ; liquidambin ; ascorbic acid ; phenylenediamine ; oxidation ; intermediate ; Organic chemistry ; QD241-441
Language	English
Publishing date	2023-01-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Ellagitannin Digestion in Moth Larvae and a New Dimeric Ellagitannin from the Leaves of Platycarya strobilacea

Juri Takayoshi / Yong-Lin Huang / Yosuke Matsuo / Yoshinori Saito / Dian-Peng Li / Takashi Tanaka

Molecules, Vol 26, Iss 4134, p

2021 Volume 4134

Abstract: Ellagitannins (ETs) are plant polyphenols with various health benefits. Recent studies have indicated that the biological activities of ETs are attributable to their degradation products, including ellagic acid and its gut microflora metabolites, such as ...

Abstract	Ellagitannins (ETs) are plant polyphenols with various health benefits. Recent studies have indicated that the biological activities of ETs are attributable to their degradation products, including ellagic acid and its gut microflora metabolites, such as urolithins. Insect tea produced in the Guangxi region, China, is made from the frass of moth larvae that feed on the ET-rich leaves of Platycarya strobilacea . Chromatographic separation of the Guangxi insect tea showed that the major phenolic constituents are ellagic acid, brevifolin carboxylic acid, gallic acid, brevifolin, and polymeric polyphenols. Chemical investigation of the feed of the larvae, the fresh leaves of P. strobilacea , showed that the major polyphenols are ETs including pedunculagin, casuarictin, strictinin, and a new ET named platycaryanin E. The new ET was confirmed as a dimer of strictinin having a tergalloyl group. The insect tea and the leaves of P. strobilacea contained polymeric polyphenols, both of which were shown to be composed of ETs and proanthocyanidins by acid hydrolysis and thiol degradation. This study clarified that Guangxi insect tea contains ET metabolites produced in the digestive tract of moth larvae, and the metabolites probably have higher bioavailabilities than the original large-molecular ETs of the leaves of P. strobilacea .
Keywords	insect tea ; Platycarya strobilacea ; ellagic acid ; brevifolin carboxylic acid ; gallic acid ; platycaryanin E ; Organic chemistry ; QD241-441
Subject code	580
Language	English
Publishing date	2021-07-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Structural Characterization and Assessment of Anti-Inflammatory Activities of Polyphenols and Depsidone Derivatives from Melastoma malabathricum subsp. normale

Rui-Jie He / Ya-Feng Wang / Bing-Yuan Yang / Zhang-Bin Liu / Dian-Peng Li / Bi-Qun Zou / Yong-Lin Huang

Molecules, Vol 27, Iss 1521, p

2022 Volume 1521

Abstract: The roots of Melastoma malabathricum subsp. normale (D. Don) Karst. Mey have been used in traditional ethnic medicine systems in China to treat inflammation-triggered ailments, such as trauma, toothache, and fever. Therefore, the aim of this study is to ... ...

Abstract	The roots of Melastoma malabathricum subsp. normale (D. Don) Karst. Mey have been used in traditional ethnic medicine systems in China to treat inflammation-triggered ailments, such as trauma, toothache, and fever. Therefore, the aim of this study is to screen for compounds with anti-inflammatory activity in the title plant. The extract of M . malabathricum subsp. normale roots was separated using various chromatographic methods, such as silica gel, ODS C18, MCI gel, and Sephadex LH-20 column chromatography, as well as semi-preparative HPLC. One new complex tannin, named whiskey tannin D ( 1 ), and an undescribed tetracyclic depsidone derivative, named guanxidone B ( 2 ), along with nine known polyphenols ( 2 – 10 ) and three known depsidone derivatives ( 12 – 14 ) were obtained from this plant. The structures of all compounds were elucidated by extensive NMR and CD experiments in conjunction with HR-ESI-MS data. All these compounds were isolated from this plant for the first time. Moreover, compounds 1 – 4 , 8 , and 10 – 14 were obtained for the first time from the genus Melastoma , and compounds 1 , 2 , and 11 – 14 have not been reported from the family Melastomataceae. This is the first report of complex tannin and depsidone derivatives from M. malabathricum subsp. normale , indicating their chemotaxonomic significance to this plant. Compounds 1 – 12 were investigated for their anti-inflammatory activities on the production of the nitric oxide (NO) in lipopolysaccharide (LPS)-stimulated RAW264.7 cells, and compounds 1 , 11 , and 12 showed anti-inflammatory activities with IC 50 values of 6.46 ± 0.23 µM, 8.02 ± 0.35 µM, and 9.82 ± 0.43 µM, respectively. The structure–activity relationship showed that the catechin at glucose C-1 in ellagitannin was the key to its anti-inflammatory activity, while CH 3 O- at C-16 of aromatic ring A in depsidone derivatives had little effect on its anti-inflammatory activity. The study of structure–activity relationships is helpful to quickly discover new anti-inflammatory drugs. ...
Keywords	Melastoma malabathricum subsp. normale (D. Don) Karst. Mey ; Melastoma ; polyphenols ; complex tannin ; depsidone derivatives ; anti-inflammatory ; Organic chemistry ; QD241-441
Subject code	540
Language	English
Publishing date	2022-02-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Phytochemical and chemotaxonomic study on Castanopsis fargesii Franch

Wang, Ya-Feng / Rui-Jie He / Dian-Peng Li / Yong-Lin Huang

Biochemical systematics and ecology. 2018 June, v. 78

2018

Abstract: In the course of a phytochemical and chemotaxonomical investigation for the Castanopsis (Fagaceae) species, fifteen compounds, including two triterpene hexahydroxydiphenoyl esters (1 and 2), seven gallotannins (3–9), three flavonoids (10–12), and three ... ...

Abstract	In the course of a phytochemical and chemotaxonomical investigation for the Castanopsis (Fagaceae) species, fifteen compounds, including two triterpene hexahydroxydiphenoyl esters (1 and 2), seven gallotannins (3–9), three flavonoids (10–12), and three other compounds (13–15) were isolated from the leaves of Castanopsis fargesii Franch. Their structures were elucidated by means of spectroscopic methods and in comparison with published data. All these compounds were obtained from this species for the first time. Moreover, ethyl glucopyranoside (15) was firstly isolated from the genus Castanopsis. 6-O-Galloyl-β-d-glucose (3) and 3,4′,5,7-tetrahydroxyflavone (11) have not been reported from any species in Fagaceae family. The chemotaxonomic significance of these compounds was summarized.
Keywords	Castanopsis ; chemotaxonomy ; esters ; flavonoids ; leaves ; spectroscopy ; triterpenoids
Language	English
Dates of publication	2018-06
Size	p. 113-115.
Publishing place	Elsevier Ltd
Document type	Article
ISSN	0305-1978
DOI	10.1016/j.bse.2018.04.011
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Structural Characterization and Assessment of Anti-Inflammatory and Anti-Tyrosinase Activities of Polyphenols from Melastoma normale

Rui-Jie He / Jun Li / Yong-Lin Huang / Ya-Feng Wang / Bing-Yuan Yang / Zhang-Bin Liu / Li Ge / Ke-Di Yang / Dian-Peng Li

Molecules, Vol 26, Iss 3913, p

2021 Volume 3913

Abstract: Polyphenols, widely distributed in the genus Melastoma plants, possess extensive cellular protective effects such as anti-inflammatory, anti-tyrosinase, and anti-obesity, which makes it a potential anti-inflammatory drug or enzyme inhibitor. Therefore, ... ...

Abstract	Polyphenols, widely distributed in the genus Melastoma plants, possess extensive cellular protective effects such as anti-inflammatory, anti-tyrosinase, and anti-obesity, which makes it a potential anti-inflammatory drug or enzyme inhibitor. Therefore, the aim of this study is to screen for the anti-inflammatory and enzyme inhibitory activities of compounds from title plant. Using silica gel, MCI, ODS C18, and Sephadex LH-20 column chromatography, as well as semipreparative HPLC, the extract of Melastoma normale roots was separated. Four new ellagitannins, Whiskey tannin C ( 1 ), 1- O -(4-methoxygalloyl)-6- O -galloyl-2,3- O -( S )-hexahydroxydiphenoyl- β - d -glucose ( 2 ), 1- O -galloyl-6- O -(3-methoxygalloyl)-2,3- O -( S )-hexahydroxydiphenoyl- β - d -glucose ( 3 ), and 1- O -galloyl-6- O -vanilloyl-2,3- O -( S )-hexahydroxydiphenoyl- β - d -glucose ( 4 ), along with eight known polyphenols were firstly obtained from this plant. The structures of all isolates were elucidated by HRMS, NMR, and CD analyses. Using lipopolysaccharide (LPS)-stimulated RAW2 64.7 cells, we investigated the anti-inflammatory activities of compounds 1 – 4 , unfortunately, none of them exhibit inhibit nitric oxide (NO) production, their IC 50 values are all > 50 μM. Anti-tyrosinase activity assays was done by tyrosinase inhibition activity screening model. Compound 1 showed weak tyrosinase inhibitory activity with IC 50 values of 426.02 ± 11.31 μM. Compounds 2 – 4 displayed moderate tyrosinase inhibitory activities with IC 50 values in the range of 124.74 ± 3.12–241.41 ± 6.23 μM. The structure–activity relationships indicate that hydroxylation at C-3′, C-4′, and C-3 in the flavones were key to their anti-tyrosinase activities. The successful isolation and structure identification of ellagitannin provide materials for the screening of anti-inflammatory drugs and enzyme inhibitors, and also contribute to the development and utilization of M. normale .
Keywords	Melastoma normale ; Melastoma ; polyphenols ; tyrosinase ; anti-inflammatory ; ellagitannins ; Organic chemistry ; QD241-441
Subject code	500
Language	English
Publishing date	2021-06-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Ellagitannins and Oligomeric Proanthocyanidins of Three Polygonaceous Plants

Yun-Qiu Li / Masako Kitaoka / Juri Takayoshi / Ya-Feng Wang / Yosuke Matsuo / Yoshinori Saito / Yong-Lin Huang / Dian-Peng Li / Gen-ichiro Nonaka / Zhi-Hong Jiang / Takashi Tanaka

Molecules, Vol 26, Iss 2, p

2021 Volume 337

Abstract: The aim of this study was to characterize hydrolyzable tannins in Polygonaceous plants, as only a few plants have previously been reported to contain ellagitannins. From Persicaria chinensis , a new hydrolyzable tannin called persicarianin was isolated ... ...

Abstract	The aim of this study was to characterize hydrolyzable tannins in Polygonaceous plants, as only a few plants have previously been reported to contain ellagitannins. From Persicaria chinensis , a new hydrolyzable tannin called persicarianin was isolated and characterized to be 3- O -galloyl-4,6-( S )-dehydrohexahydroxydiphenoyl- d -glucose. Interestingly, acid hydrolysis of this compound afforded ellagic acid, despite the absence of a hexahydroxydiphenoyl group. From the rhizome of Polygonum runcinatum var. sinense , a large amount of granatin A, along with minor ellagitannins, helioscpoinin A, davicratinic acids B and C, and a new ellagitannin called polygonanin A, were isolated. Based on 2D nuclear magnetic resonance (NMR) spectroscopic examination, the structure of polygonanin A was determined to be 1,6-( S )-hexahydroxydiphenoyl-2,4-hydroxychebuloyl-β- d -glucopyranose. These are the second and third hydrolyzable tannins isolated from Polygonaceous plants. In addition, oligomeric proanthocyanidins of Persicaria capitatum and P. chinensis were characterized by thiol degradation. These results suggested that some Polygonaceous plants are the source of hydrolyzable tannins not only proanthocyanidins.
Keywords	ellagitannin ; hydrolyzable tannin ; proanthocyanidin ; Persicaria ; Polygonum ; Polygonaceae ; Organic chemistry ; QD241-441
Subject code	580
Language	English
Publishing date	2021-01-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Two New Oleanane-Type Triterpenes Isolated from Japanese Post-Fermented Tea Produced by Anaerobic Microbial Fermentation

Isao Kouno / Yosuke Matsuo / Takashi Tanaka / Yong-Lin Huang / Sachi Nagai / Yoshinori Saito

Molecules, Vol 18, Iss 5, Pp 4868-

2013 Volume 4875

Abstract: Four triterpenes were isolated from a traditional Japanese tea product produced by anaerobic microbial fermentation of heated green tea leaves (Camellia sinensis). Two of the compounds were novel and characterized by spectroscopic investigation to be 13, ... ...

Abstract	Four triterpenes were isolated from a traditional Japanese tea product produced by anaerobic microbial fermentation of heated green tea leaves (Camellia sinensis). Two of the compounds were novel and characterized by spectroscopic investigation to be 13,26-epoxy-3β,11α-dihydroxyolean-12-one and 3β,11α,13β-trihydroxyolean-12-one. Two known triterpenes were identified as taraxastane-3β,20β-diol and taraxastane-3β,20α-diol. These triterpenes were not detected in the original green tea leaves.
Keywords	post-fermented tea ; anaerobic fermentation ; triterpene ; oleanane ; Awa-bancha ; Organic chemistry ; QD241-441
Language	English
Publishing date	2013-04-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Phenolic Compounds from the Leaves of Castanopsis fargesii

Yong-Lin Huang / Ya-Feng Wang / Jin-Lei Liu / Lei Wang / Takashi Tanaka / Yue-Yuan Chen / Feng-Lai Lu / Dian-Peng Li

Molecules, Vol 22, Iss 1, p

2017 Volume 162

Abstract: In the course of a phytochemical and chemotaxonomical investigation of Castanopsis species (Fagaceae), three new phenolic compounds, (3R,1′S)-[1′-(6″-O-galloyl-β-d-gluco-pyranosyl)oxyethyl]-3-hydroxy-dihydrofuran-2(3H)-one (1), (2R,3S)-2-[2′-(galloyl) ... ...

Abstract	In the course of a phytochemical and chemotaxonomical investigation of Castanopsis species (Fagaceae), three new phenolic compounds, (3R,1′S)-[1′-(6″-O-galloyl-β-d-gluco-pyranosyl)oxyethyl]-3-hydroxy-dihydrofuran-2(3H)-one (1), (2R,3S)-2-[2′-(galloyl)oxyethyl]-dihydroxybutanoic acid (2), and (3S,4S)-3-hydroxymethyl-3,4-dihydro-5,6,7-trihydroxy-4-(4′-hydroxy-3′-methoxyphenyl)-1H-[2]-benzopyran-1-one (3) were isolated from the fresh leaves of Castanopsis fargesii. In addition, a known phenolic glycoside, gentisic acid 5-O-α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranoside (4) was also isolated and identified. Their structures were elucidated by means of spectroscopic methods including one- and two-dimensional NMR techniques.
Keywords	Castanopsis fargesii ; Castanopsis ; phenolic ; cytotoxicity ; Organic chemistry ; QD241-441
Language	English
Publishing date	2017-01-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Metabolites of Siamenoside I and Their Distributions in Rats

Xue-Rong Yang / Feng Xu / Dian-Peng Li / Feng-Lai Lu / Guang-Xue Liu / Lei Wang / Ming-Ying Shang / Yong-Lin Huang / Shao-Qing Cai

Molecules, Vol 21, Iss 2, p

2016 Volume 176

Abstract: Siamenoside I is the sweetest mogroside that has several kinds of bioactivities, and it is also a constituent of Siraitiae Fructus, a fruit and herb in China. Hitherto the metabolism of siamenoside I in human or animals remains unclear. To reveal its ... ...

Abstract	Siamenoside I is the sweetest mogroside that has several kinds of bioactivities, and it is also a constituent of Siraitiae Fructus, a fruit and herb in China. Hitherto the metabolism of siamenoside I in human or animals remains unclear. To reveal its metabolic pathways, a high-performance liquid chromatography-electrospray ionization-ion trap-time of flight-multistage mass spectrometry (HPLC-ESI-IT-TOF-MSn) method was used to profile and identify its metabolites in rats. Altogether, 86 new metabolites were identified or tentatively identified, and 23 of them were also new metabolites of mogrosides. In rats, siamenoside I was found to undergo deglycosylation, hydroxylation, dehydrogenation, deoxygenation, isomerization, and glycosylation reactions. Among them, deoxygenation, pentahydroxylation, and didehydrogenation were novel metabolic reactions of mogrosides. The distributions of siamenoside I and its 86 metabolites in rat organs were firstly reported, and they were mainly distributed to intestine, stomach, kidney, and brain. The most widely distributed metabolite was mogroside IIIE. In addition, eight metabolites were bioactive according to literature. These findings would help to understand the metabolism and effective forms of siamenoside I and other mogrosides in vivo.
Keywords	Siraitia grosvenorii ; mogrosides ; siamenoside I ; metabolism ; distribution ; LC-IT-TOF-MSn ; natural sweeteners ; saponins ; cucurbitanes ; Organic chemistry ; QD241-441
Subject code	500
Language	English
Publishing date	2016-01-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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